Grainy and Blurry Ezviz camera

klerg

n3wb
Dec 6, 2015
12
2
Hello

I have an Ezviz Ezguard outdoor bullet Camera and image quality looks very grainy and blurry (see attached image). What is wrong, and any way to fix it or is some hardware issue ?

Thanks in advance
 

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Get a better camera :lmao:

For starters it looks like the IR filter is stuck. That could be whacking out everything. Give it a few good whacks and see if you can get it unstuck.
 
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I will when am able to afford one

But how did the IR filter get stuck in first place? Yes looks like it messes up the image pretty badly here. Where do I whack it at? This is an Ezviz C3W Ezguard btw

Yea it looks to me like the IR filter is done for, The warranty is over for this camera
 
Hello

I have an Ezviz Ezguard outdoor bullet Camera and image quality looks very grainy and blurry (see attached image). What is wrong, and any way to fix it or is some hardware issue ?

Thanks in advance


FYI - looks like this model ..

1660703522182.png

1660703543118.png
1660703564528.png
 
They can get stuck from time to time, even the high end ones. It could be a temperature extreme, miniscule piece of dust that is caught in the spring, or it just wore out.

Folks using just start banging on it on the top, bottom, and sides until it moves.

I have had some stuck before. A few bangs usually gets it going. Or a power cycle of the camera (unplug it and plug back in).
 
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Yes that is the exact camera pretty much

I see so just a bad case of luck is what we gotta deal with. Where I live the temperature is hardly extreme but it is humid so there's that, I bet something is stuck inside it, hope is not worn out.

How hard should I be banging it on the top, bottom, and sides to not damage anything else?

Yes first time for me and maybe I get lucky and it works. Why not open it up and find out what is in the IR Filter? I power cycled it many times already but no dice
 
You can pound on the camera pretty hard and it will be fine. Since it is a crappy image now, you don't have anything really to lose by banging the crap out of it LOL.

You can try opening it up, but they are delicate and your would probably break it, or it may be sealed as part of the sensor unit.
 
Yea I mean the outer shell is pretty tough so no big deal then. Yup is almost useless at this point it had a nice image quality back when it worked so will start banging it soon for sure.

I'm surprised this bullet camera is fairly easy to open up, I will post some pictures of the inside of this camera to see what is going if can be fixed.
 
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Any luck with fixing the issue?
I gave 4 of these cameras (5yrs in service) and they ALL have this issue.
When I powercycle it or put my hand on it to simulate darkness, I do hear a 'click'.
Night vision works OK (in black&white)
Without sun (e.g. inside) the picture is pretty ok
Only with sunlight the grainy effect comes in.
 
Found this possible solution.
Could be exposure setting. Change in desktop application. Will try and report back
 
The camera in purple pic means Camera CMOS going bad. Time to replace them, it's hardware issue.
 
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Hardware issue makes sense as all 4 cameras suffer from same issue.
'fixed' it temporarily by setting exposure to 1/1000....
 
Make it always black and white will make the camera working. CMOS going DOA, we see this a lot on those cheap cams. The batch defective.
 
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I have the exact same issue on two EZVIZ C3W CV-310 (same model of OP) isnt' the IR sensor, it is an exposure issue, if you login using hickvision or ezviz app and switch the exposure to 1000 or 2000 images becames instantly clear but then at night will be too dark......reset doesn't help either, one camera does it pretty much every second day, the other once in a while
I have "LOTS" of ezviz with bluiris, those EZVIZ C3W are the only ones affected, all the other (older too....) work well.
1733953447150.png
 
OK, so sounds I have a 'bad luck' EZVIZ C3W batch as all of my 4 cameras suffered from this. The cause of the issue is definitely the (cheap?) CMOS going bad . . . .
Indeed the exposure 'fix' does not really solve it (because ow low exposure setting, duh). Switching to B&W also is not a final solution as the one time I needed the footage because of a burglary, having color footage was crucial to get the villains (tattoos!) identified (and sentenced in court).
I am now in the process to replace them all (and switch partly to PoE to take away some stress from my WiFi) . Switched to Annke camera's (incl 2 dual sensor panoramic view ones) and Reolink doorbell. Annke is also Hikvision and not too pricey. Reolink cameras are too expensive I think but the (PoE) doorbell is good quality and affordable. Linking to my (Shinobi CCTV) NVR is an easier job with the new devices as well.
Lets see how these hold on.....
 
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